About Sandvik HL820 rock
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About Sandvik HL820 rock video introduction
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6 FAQs about [Sandvik HL820 rock]
What is Sandvik hl820t?
Sandvik HL820T is a heavy hydraulic percussion rock drill designed for drilling 64-127 mm diameter holes in Sandvik surface longhole drill rigs. Features include independent rotation and separate flushing. HL820T has a high drilling capacity and reliability level, enabled by functional modules.
What is a Sandvik hl820t drill rig?
hydraulically controlled surface long hole drill rigs. Power class 21 kW drill with independent rotation and separate flushing. Operating pressure 80 – 200 bar (percussion) High drilling capacity and reliability are enabled by 200 bar (rotation max.) functional modules. Sandvik HL820T is equipped with Rotation motor type OMT 200, OMT 250, OMT 315
How deep can a Sandvik hl820st drill drill?
Designed for DL311 and DL321 underground longhole drills, Sandvik HL820ST hydraulic top hammer rock drill can drill holes ranging between 54-89 mm in diameter and 38 m in depth. The HL820ST main body modules are connected by four side bolts, minimizing the number of joint faces and large contact surfaces.
What are the features of hl820t?
Features include independent rotation and separate flushing. HL820T has a high drilling capacity and reliability level, enabled by functional modules. It ensures optimal drilling performance and extended drill steel lifetime due to the hydraulic stabilizer that controls contact between the drill bit and rock.
How safe is the Sandvik hl820?
Safety and operability are paramount in the design of the Sandvik HL820; thus, it comes equipped with features such as a robust canopy structure to protect the operator, as well as an intuitive control system that promotes ease of use under challenging conditions.
How do hl820st percussion modules work?
The HL820ST main body modules are connected by four side bolts, minimizing the number of joint faces and large contact surfaces. Its simple percussion module has only two moving parts: the piston, distributor sleeve and moving parts are never in contact with the drill body modules.


